I heard you could put aftermarket GSR pistons into an LS. what would be the compression ratio be if you had 8.9:1 GSR pistons?

 

You can put them in your LS. I am not an expert, so I could be wrong, but I am pretty sure that if those pistons give a 8.9:1 CR in a GSR, they would make even lower than that in your LS, like around 8:1. I could be wrong though. .

 

why would it drop compression? that doesnt make any sense

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by romeo619romeo &raquo;</TD></TR><TR><TD CLASS="quote">why would it drop compression? that doesnt make any sense</TD></TR></TABLE>

Because a piston in an LS motor will yield a lower CR than that same piston in a GSR motor.

 

For your b-series compression ratio needs:

http://www.c-speedracing.com/h...c.php